diff options
| author | YueHaibing <yuehaibing@huawei.com> | 2022-11-23 11:12:53 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-14 12:16:00 +0300 |
| commit | b9fa01fb3140f1e2a7989a4b4ab86296f8b9c064 (patch) | |
| tree | 3aa0de7e48017b725a9eeb5387f14d178fa751bc /drivers/staging | |
| parent | daa8045a991363ccdae5615d170f35aa1135e7a7 (diff) | |
| download | linux-b9fa01fb3140f1e2a7989a4b4ab86296f8b9c064.tar.xz | |
staging: rtl8192e: Fix potential use-after-free in rtllib_rx_Monitor()
[ Upstream commit d30f4436f364b4ad915ca2c09be07cd0f93ceb44 ]
The skb is delivered to netif_rx() in rtllib_monitor_rx(), which may free it,
after calling this, dereferencing skb may trigger use-after-free.
Found by Smatch.
Fixes: 94a799425eee ("From: wlanfae <wlanfae@realtek.com> [PATCH 1/8] rtl8192e: Import new version of driver from realtek")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20221123081253.22296-1-yuehaibing@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/rtl8192e/rtllib_rx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/staging/rtl8192e/rtllib_rx.c b/drivers/staging/rtl8192e/rtllib_rx.c index 63752233e551..404794503fb6 100644 --- a/drivers/staging/rtl8192e/rtllib_rx.c +++ b/drivers/staging/rtl8192e/rtllib_rx.c @@ -1490,9 +1490,9 @@ static int rtllib_rx_Monitor(struct rtllib_device *ieee, struct sk_buff *skb, hdrlen += 4; } - rtllib_monitor_rx(ieee, skb, rx_stats, hdrlen); ieee->stats.rx_packets++; ieee->stats.rx_bytes += skb->len; + rtllib_monitor_rx(ieee, skb, rx_stats, hdrlen); return 1; } |